Mining machine



May 25 l1926. 1,585,916

M. P. HOLMES MINING MACHINE Filed Oct. 19, 1921 Patented May 25, 1926.

UNITED SATES i n 1,585,916 PTENT OFFICE.

MORRIS l. HOLMES, OF CLAREMONT, NEW HAMPSHIRE, ASSIGNOR TO SULLIVAN MACHINERY COMPANY, A CORPORATION OF MASSACHUSETTS.

MINING- MACHINE.

Application filed October 19, 1921.

My invention relates to mining machines. It has for its object to provide an 1mproved cutter mechanism therefor and more especially to provide an improved cutter l bar of such great strength that sulphur'or the like entering between the chain and .gibs may not pry the bar apart, or, as sometimes occurs, open up the bar to such an extent as to cause the cutter chain to run out.

In the accompanying drawings I have shown for purposes of illustration two embodiments which my invention may assume in practice.

In these drawings,-- t

Fig. 1 is a side elevation of a mining machine equipped with one form of my improvement.

Fig. 2 is an enlarged transverse sectional view on line 2 2 of Fig. 1. A Fig. 3 is a longitudinal partially sectional view of the construction shown in Fig. 2.

Fig. 4 is an enlarged sectional view similar to Fig. 2 showing a modified construction.

Fig. 5 is a longitudinal partially sectional View of that construction.

In these illustrative constructions, it will be noted that a mining machine bar of a usual shape is shown comprising usual parallel longitudinally extending members 1 spaced apart laterally and cooperatingtransveisely disposed upper and lower members 2, while gib members 3 are .suitably rigidly connected as by rivets 4 to portions of the members 1 which extend laterally beyond the members 2, these gib members being as usual disposed on each side of the outer edges of the members 1 and cooperating to form a cutter chain passage. 0 In the form of my invention shown in Figs. 2 and 3, it will be noted that the gib members 3 are provided with longitudinal slots 5 therein at their inner ends and that supplemental gib means extending part way into said slots are carried on the outer ends of the gib members 3, herein in the form of members 6 suitably attached to the gib meinbers by rivets 7 Movable between the gib members 6 and having upwardly and then outwardly extending portions or lips 8 o n opposite sides of its inner end movable longitudinallyof the slots 5 and fitting around and interlocking with the ends of the members 6 is a cutter chain 9, which is movable along and around the bar in a usual manner Serial No. 508,791.

on .suitable sprockets (not shown) including a driving sprocket carried beneath the machine and an idler sprocket located at the end of the bar.

Referring to the form of my invention shown in Figs. 4 and 5, it will be noted that in that construction supplemental gib means, herein in the form of members 10, are provided on the outer ends of the gibs 3, which cooperate with corresponding lip members 11 on the outer end of a chain 12 which in this form of my invention is also provided with a member 13 on its inner end running in back of the inner ends of the members 10 and thereby preventing lateral separation of the chain from the bar. This is a preferred construction, as with it, it is possible to utilize a bar of standard construction having only the additional gib members 10 on its gibs 3 and to utilize a chain of standard construction having only the additional lips 1l.

As a result of my improvement, it will be observed that whether it is applied to the inner or outer edge of the gibs 6, foreign matter, such as sulphur or the like, entering the machine lengthwise and either at the idler sprocket at the front end or at a point on the slack side of the chain and working its way lengthwise of the bar, is unable to wedge the gibs from the bar due not only to the ordinary holding means for the gibs 3, such as the rivets 4, but to the action of my improved interlocking means, herein between the bar and chain, which furnish 'an additional means operative to prevent a wedging separating movement of the gibs Vand the difficulties with the running of the chain resulting therefrom.

While Ivliave in this application specifically described two embodiments which my invention may assume in practice, it will be understood that these forms of the same are shown for purposes of illustration and that the invention may be modified and embodied in various other forms and applied to bars of different types without departing from its spirit or the scope of the appended claims.

What I claim as new and desire to secure by Letters Patent is:

1. In combination, a cutter bar, a longitudinally disposed laterally extending gib thereon, means for holding said gib rigidly to said bar, and supplemental means including an element movable in a path parallel to the plane of said bar for supplementing the resistance of said first mentioned holding means to a prying movement in a direction transif'erse to the plane of said bar.

2. A cutter bar having longitudinally disposed laterally extending gibs rigidly connected thereto, and supplemental movable. means for locking said gibs against a prying movement in a direction transverse to the plane of the bar.

8. A cutter bar having secured in rigid relation thereto parallel longitudinally disposed laterally extending gibs, constant-ly stressed means for holding said gibs in such relation, and supplemental means interlocking with said gibs and stressed only on relative movement between said gibs.

4. A cutter bar having parallel longitudinally disposed laterally extending gibs rigidly connected thereto, and supplemental gib members carried on the outer edges of said gibs and projecting laterally therefrom to prevent movement thereof in a direction transverse to the plane of the bar.

5. A cutter bar, a longitudinally disposed laterally extending gib thereon, means for rigidly connecting the same, and independent means intedlocking with said gib and stressed only on relative movement between gib and bar for holding said members against separation in a direction transverse to the plane of the bar.

6. In combination, in a cutter bar, a pair of gib members, a spacing member, means for holding said members in rigid relation to each other whereby a chain guiding passage is formed between said gib members, and supplemental means independent of said first mentioned means for holding said gib members against separation, said supplemental means and gib members having interlocking flange portions.

7. A cutter bar having parallel longitudinally disposed laterally extending spaced gibs connected thereto and comprising means for spacing said gibs, means cooperating with said spacing means to hold said gibs in rigid relation to the bar, and supple-- mental means interlocking with said gibs and independent of said spacing means for holding the gibs against separation in a direction transverse to the plane of said bar.

8. A cutter bar having longitudinally disposed laterally extending gibs rigidly connected thereto and presenting a cutter chain passage, a cutter chain movable between said gibs, and supplemental means carried by said cutter chain for interlocking said gibs against separation in a direction transverse to the plane of the bar.

9. A cutter bar having' longitudinally disposed laterally extending gibs rigidly connected thereto and presenting a cutter chain passage, a cutter chain movable between said gibs, and supplemental means interloeked with said chain for preventing separation of said gibs.

10. A cutter bar having longitudinally disposed laterally extending gibs connected thereto, means for spacing said gibs to form a cutter chain passage, a cutter chain movable between said gibs, and supplemental means for interlocking said chain with said gibs to prevent movement thereof in a direction transverse to the plane of the bar 11. A cutter bar having longitudinally disposed and grooved laterally extending gibs connected thereto, means to space said gibs to form a cutter chain guiding passage, and means extending into said grooves to interlock with a cutter movable in said passage.

12. A cutter bar having a longitudinally disposed laterally extending gib rigidly connected thereto, and supplemental holding means therefor including a bearing member.

13. A cutter bar having longitudinally disposed laterally extending gibs rigidly connected thereto, and supplemental means interlocking with each of said gibs to prevent separation thereof including bearing means.

14. A cutter bar having longitudinally disposed laterally extending gibs rigidly connected thereto and forming a cutter chain passage, a cutter chain movable in said guide, and supplemental means for interlocking said chain with said gibs including bearing means.

15. A cutter bar yhaving longitudinally disposed laterally extending gibs rigidly connected thereto and presenting a cutter chain passage, a cutter chain movable in guided relation between said gibs, means preventing lateral separation of said chain and bar, and means for preventing separation of said gibs.

16. A cutter bar having longitudinally disposed laterally extending gibs rigidly connected thereto and presenting a cutter chain passage, a cutter chain movable in guided relation between said gibs, means preventing lateral separation of said chain and bar, and means between said gibs and chain for interlocking said gibs against separation.

17. A cutter bar having spaced gibs rigidly connected thereto, and means including supplemental gib elements interlocking with said gibs for preventing separation thereof in a direction transverse to the plane of the bar.

18. A cutter bar having parallel longitudinally disposed laterally extending gibs rigidly connected thereto, and supplemental gib members carried on the outer edges of said gibs and projecting laterally therefrom for preventing separation thereof in a direction transverse to the plane of the bar.

19. A cutter bar having grooved gibs vao connected thereto, means to space said gibs to forni a cutter chain guiding passage, and means extending into said grooves including interlocking elements carried by a cutter chain movable in said passage to prevent separation of the gibs in a direction transverse to the plane of the bar.

20. A cutter bar having a gib connected thereto, and supplemental holding means for said gib including a bearing member.

21. A cutter bar having a gib connected In testimony whereof I aiix my signature.

MORRIS P. HoLiiiis. 

